<template>
    <div>
        <!-- 面包屑导航 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图 -->
      <el-card>
         <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
          <el-col :span="10">
            <el-input placeholder="请输入内容" clearable v-model="queryInfo.query" @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
         </el-col>
        <el-col :span="3">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>  
        <el-table-column label="状态" prop="mg_state">
           <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" active-color="#409EFF" inactive-color="#EAEDF1" @change="userStateChanged(scope.row)"></el-switch>
           </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
               <!-- 编辑按钮 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
               <!-- 删除按钮 -->
                   <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
               <!-- 分配角色 -->
              <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                   <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
               </el-tooltip>
            </template>
        </el-table-column>   
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum" :page-sizes="[1,2,5,10]" :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper" :total="total"> <!-- layout用来指定显示哪些布局结构 -->
    </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!-- 内容主体区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
       <el-form-item label="用户名" prop="username">
        <el-input v-model="addForm.username"></el-input>
       </el-form-item>
        <el-form-item label="密码" prop="password">
        <el-input type="password" v-model="addForm.password"></el-input>
       </el-form-item>
        <el-form-item label="确认密码" prop="apassword">
        <el-input type="password" v-model="addForm.apassword"></el-input>
       </el-form-item>
        <el-form-item label="邮箱" prop="email">
        <el-input v-model="addForm.email"></el-input>
       </el-form-item>
       <el-form-item label="手机" prop="mobile">
        <el-input v-model="addForm.mobile"></el-input>
       </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
       <el-button @click="addDialogVisible = false">取 消</el-button>
       <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
     <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
       <el-form-item label="用户名">
        <el-input v-model="editForm.username" disabled></el-input>
       </el-form-item>
       <el-form-item label="邮箱" prop="email">
        <el-input v-model="editForm.email"></el-input>
       </el-form-item>
       <el-form-item label="手机号" prop="mobile">
        <el-input v-model="editForm.mobile"></el-input>
       </el-form-item>
     </el-form>
     <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo" >确 定</el-button>
  </span>
</el-dialog>
   <!-- 分配角色对话框 -->
   <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
  <div>
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色： {{userInfo.role_name}}</p>
      <p>分配新角色
       <el-select v-model="selectedRoleId" placeholder="请选择">
        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
        </el-option>
       </el-select>
      </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>
<script>
export default {
    data(){
         // 自定义验证邮箱的规则
            var checkEmail = (rules,value,callback) =>{
               const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
               if(regEmail.test(value)){
                   return callback()
               }
               else{
                   callback(new Error('请输入合法的邮箱'))
               }
            }
            // 自定义验证手机号的规则
            var checkMobile = (rule,value,callback) => {
               const regMobile = /^1[3|4|5|7|8][0-9]{9}$/;
               if(regMobile.test(value)){
                   return callback()
               }
               else{
                   callback(new Error('请输入正确的手机号'))
               }
            }
        return {
            // 获取用户列表的参数对象
            queryInfo: {
            query: '',   //查询参数，搜索关键字
            pagenum: 1,   //当前页码
            pagesize: 2    //每页显示多少条数据
           },
           userlist: [],   //用户列表
           total: 0,          //总数据条数
           addDialogVisible: false,   //控制添加用户的显示与隐藏
           editDialogVisible: false,   //修改用户的显示与隐藏
           addForm: {   //添加用户的表单数据
              username: '',
              password: '',
              apassword: '',
              email: '',
              mobile: ''
           },  
           editForm: {},  //查询到的用户信息对象
           editFormRules: {      //修改用户信息的验证规则对象
              email: [
                  {required: true,message: '请输入邮箱',trigger: 'blur'},
                  {validator: checkEmail,trigger: 'blur'} //validator为data数据里的自定义校验规则
              ],
              mobile: [
                  {required: true,message: '请输入手机号',trigger: 'blur'},
                  {validator: checkMobile,trigger: 'blur'}
              ]
           },
           addFormRules: {    //添加表单的验证规则对象
               username: [
                   {required: true,message: '请输入用户名',trigger: 'blur'},
                   {min: 3,max: 10,message: '用户名的长度在3-10个字符之间',trigger: 'blur'}
               ],
               password: [
                   {required: true,message: '请输入密码',trigger: 'blur'},
                   {min: 6,max: 15,message: '密码长度在6-15之间', trigger: 'blur'}
               ],
               apassword: [
                   {required: true,message: '请再次输入密码',trigger: 'blur'},
                   {min: 6,max: 15,message: '密码长度在6-15之间', trigger: 'blur'}
               ],
               email: [
                   {required: true,message: '请输入邮箱',trigger: 'blur'},
                   {validator: checkEmail,trigger: 'blur'} //validator为data数据里的自定义校验规则
               ],
               mobile: [
                   {required: true,message: '请输入手机号',trigger: 'blur'},
                   {validator: checkMobile,trigger: 'blur'}
               ],

           },
        //    控制分配角色对话框的显示与隐藏
           setRoleDialogVisible: false,
        //需要被分配角色的用户信息
           userInfo: {},
        // 所有角色的数据列表
           rolesList: [],
        //    已选中的角色Id值
           selectedRoleId: ''
        }
    },
    created(){
        this.getUserList()
    },
    methods: {
        async getUserList(){
            const {data: res} = await this.$http.get("users",{params:this.queryInfo})
            if(res.meta.status !== 200) {return this.$message.error("获取用户列表失败")}
            this.userlist = res.data.users
            this.total = res.data.total
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值的变化
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听状态开关的变化
        async userStateChanged(userinfo){
        const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if(res.meta.status !==200){
            userinfo.mg_state = !userinfo.mg_state
            return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功！')
        },
        // 监听添加用户的对话框关闭事件
        addDialogClosed(){
          this.$refs.addFormRef.resetFields()
        },
        // 点击按钮添加新用户
        addUser(){
          this.$refs.addFormRef.validate(async valid => { //valid为true或false
          if(!valid)return
          //发起添加用户的请求
          const {data: res} = await this.$http.post('users',this.addForm)
          if(res.meta.status !== 201){
              this.$message.error('添加用户失败')
          }
          this.$message.success('添加用户成功！')
          this.addDialogVisible = false  //让添加对话框隐藏
          this.getUserList()  //重新刷新列表，让页面显示出新添加的用户信息
          })
        },
        //展示编辑用户对话框
        async showEditDialog(id){
          const {data:res} = await this.$http.get("users/"+id)
          if(res.meta.status !== 200) {
              return this.$message.error("查询用户信息失败")
          }
          this.editForm = res.data
          this.editDialogVisible = true
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
          this.$refs.editFormRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
              if(!valid)return
              //发起修改用户信息的数据请求
              console.log(this.editForm.id);
              const {data: res} = await this.$http.put("users/"+ this.editForm.id,{
                email: this.editForm.email,
                mobile: this.editForm.mobile
                })
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败')
                }
                this.editDialogVisible = false  //关闭对话框
                this.getUserList()    //更新用户列表
                this.$message.success('更新用户信息成功')
            })
        },
        //根据id删除用户信息
        async removeUserById(id){
            //弹框询问用户是否删除数据,如果用户确认删除则返回字符串confirm,如果取消删除则返回字符串cancel
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                          confirmButtonText: '确定',
                          cancelButtonText: '取消',
                          type: 'warning'
        }).catch(err => err)
        if(confirmResult !== 'confirm'){
            return this.$message.info('已取消删除')
        }else{
           const {data: res} = await this.$http.delete("users/"+id)
           if(res.meta.status !== 200){
               return this.$message.error('删除用户失败')
           }
           this.$message.success('删除用户成功')
           this.getUserList()
        }
      },
      //展示分配角色的对话框
      async setRole(userInfo){
          this.userInfo = userInfo
          //在展示对话框之前，获取所有角色的列表
          const {data: res} = await this.$http.get('roles')
          if(res.meta.status !== 200){
              return this.$message.error("获取角色列表失败")
          }
          this.rolesList = res.data
          this.setRoleDialogVisible = true
      },
    //   点击按钮分配角色
    async saveRoleInfo(){
        if(!this.selectedRoleId){
            return this.$message.error('请选择要分配的角色')
        }
        const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.selectedRoleId})
        console.log(res);
        console.log(this.selectedRoleId);
        if(res.meta.status !== 200){
            return this.$message.error("更新角色失败")
        }
        this.$message.success("更新角色成功")
        this.getUserList()
        console.log(this.userlist);
        this.setRoleDialogVisible = false
    },
    setRoleDialogClosed(){
        this.selectedRoleId = ''
        this.userInfo = {}
    }
    }
}
</script>
<style lang="less" scoped>

</style>